Use of this content is subject to the Terms and Conditions of the MD Consult web site.
Brown: Atlas of Regional Anesthesia, 3rd ed., Copyright © 2006 Saunders, An Imprint of Elsevier
< Previous Next >

PEARLS

Figure 9-6 illustrates the two complementary theories of how IV regional anesthesia produces a block. It conceptualizes the local anesthetic entering the venous system and producing the block by blocking the peripheral nerves running with the venous structures. It also outlines a theory that may be complementary; that is, the local anesthetic leaves the veins and blocks small distal branches of peripheral nerves. It is likely that both of these theories are operative. If IV regional anesthesia is to be used successfully, all members of the operating team should understand the importance of tourniquet integrity, as the most significant problems with the technique involve unintentional deflation of the tourniquet.

Click to view full size figure

Figure 9-6  Intravenous regional block: potential mechanism(s) of action.


< Previous Next >

About MD Consult Contact Us Terms and Conditions Privacy Policy Registered User Agreement
Copyright © 2007 Elsevier Inc. All rights reserved. www.mdconsult.com 
Bookmark URL: /das/book/0/view/1353/30.html/top